Glass tempering furnace

Abstract

This invention discloses a glass tempering furnace, relating to the field of glass tempering technology. The furnace includes a furnace chamber for heating glass, with multiple rollers linearly distributed horizontally within the chamber for conveying the glass. Guide plates with heating wires are provided on both the upper and lower sides of the rollers, and both guide plates are slidably mounted on the inner wall of the furnace chamber. An adjustment assembly includes a drive roller and two sets of adjustment mechanisms. The drive roller is located at the furnace inlet and above the rollers. The two sets of adjustment mechanisms are respectively connected to both ends of the drive roller and to the guide plates. Glass of different thicknesses enters the furnace chamber and lifts the drive roller to different heights. The two sets of adjustment mechanisms change the position of the guide plates based on the height lifted by the drive roller, thereby changing the distance between the heating wires and the glass.

Description

Technical Field

[0001] This invention relates to the field of glass tempering technology, specifically to glass tempering furnaces. Background Technology

[0002] Glass tempering is a process that improves the strength and heat resistance of glass through heat treatment and rapid cooling. Traditional glass tempering furnaces typically include a heating furnace and a cooling system. After the glass is heated to near its softening point in the heating furnace, it is rapidly cooled to create compressive stress on its surface, thereby improving its mechanical properties.

[0003] Currently, most glass tempering furnaces use a fixed heating method, which cannot accurately adjust the heating temperature according to the glass thickness. When processing thick glass, if the same temperature is used as for thin glass, the radiant heat flow will be too weak, the forced convection heat transfer efficiency will be low, resulting in the glass core temperature not meeting the standard and the strength not meeting the requirements; the temperature difference between the center and the edge will be large, and the stress will be uneven after cooling; it is easy to produce bow-shaped deformation, which will affect the tempering quality.

[0004] To address the above problems, this invention provides a glass tempering furnace to solve them. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a glass tempering furnace, comprising a furnace chamber for heating glass, wherein multiple rollers for conveying glass are linearly distributed horizontally within the furnace chamber, and guide plates with heating guide wires are provided on both the upper and lower sides of the rollers, and both guide plates are slidably mounted on the inner wall of the furnace chamber. An adjustment assembly includes a drive roller and two sets of adjustment mechanisms. The drive roller is located at the inlet end of the furnace chamber and above the rollers, and the two sets of adjustment mechanisms are respectively connected to both ends of the drive roller and respectively connected to the guide plates.

[0006] When glass of different thicknesses enters the furnace, it lifts the active roller to different heights. Two sets of adjustment mechanisms change the position of the guide plate based on the height lifted by the active roller, thereby changing the distance between the heating guide wire and the glass.

[0007] Furthermore, as a preferred embodiment, the adjustment mechanism includes a support, a steering shaft, a driving rod, a driven rod, a top rod, a limiting plate, and a slider; the support is fixed to the inner wall of the furnace inlet end, and a steering shaft is rotatably connected inside the support. The two ends of the steering shaft are fixedly connected to the driving rod and the driven rod, respectively. The driving roller is rotatably connected to the driving rod, and the driven rod is rotatably connected to one end of the top rod. The top rod abuts against the guide plate located on the upper layer. The limiting plate is fixed to the inner wall of the furnace, and a limiting groove is opened in the limiting plate. The slider is slidably disposed in the limiting groove, and the slider is rotatably connected to the end of the top rod away from the driven rod.

[0008] Furthermore, as a preferred embodiment, a transmission assembly is provided between the two guide plates. The transmission assembly includes a first rack, a fixed shaft, a gear, and a second rack. The fixed shaft is fixed to the inner wall of the furnace, and the gear is rotated and sleeved on the outer circumference of the fixed shaft. The first rack is connected to the guide plate above the glass, and the second rack is connected to the guide plate below the glass. The gear meshes with the first rack and the second rack respectively.

[0009] Furthermore, as a preferred embodiment, the limiting plate is provided with a self-locking component, which includes a sliding column, a lower ratchet, a compression spring, and an upper ratchet. The sliding column slides through the limiting plate, the lower ratchet is fixed to the upper end of the sliding column and is slidably disposed within the limiting plate, the compression spring is connected between the inner wall of the limiting plate and the lower ratchet, and the upper ratchet is fixed to the lower end of the slider and engages with the lower ratchet.

[0010] Furthermore, as a preferred embodiment, each adjustment mechanism also includes a return spring, one end of which is connected to the inner wall of the furnace, and the other end of which is connected to the drive rod. A return rod is fixed on the lower ratchet, and an avoidance hole is provided on the side wall of the furnace, with the return rod slidably disposed in the avoidance hole.

[0011] Furthermore, as a preferred embodiment, the top and bottom of the furnace are connected to the output end of an external fan via air ducts. A wind force adjustment assembly is symmetrically arranged inside the furnace on one side opposite to the two guide plates. The wind force adjustment assembly includes a wind shield, a push rod, and an ejection spring. The wind shield slides in contact with the guide plate. The two ends of the push rod are respectively hinged between the inner wall of the furnace and the wind shield. The ejection spring is connected between the push rod and the inner wall of the furnace.

[0012] The guide plate has multiple trapezoidal holes linearly opened in the horizontal direction; the wind shield has multiple rectangular holes linearly opened in the horizontal direction, and the multiple rectangular holes are connected to the multiple trapezoidal holes one by one.

[0013] Furthermore, as a preferred embodiment, multiple rollers are provided with a drive mechanism, which includes a motor, a rotating shaft, a sprocket, and a transmission belt. The motor is fixedly mounted, and a base is fixedly mounted at the bottom of the furnace. The rotating shaft rotates within a sleeve fixed on the base. The sprocket is connected between the driving tooth on the output shaft of the motor and the driven tooth on the rotating shaft. Multiple transmission belts are configured, and each transmission belt is connected between the rotating shaft and multiple rollers.

[0014] Furthermore, as a preferred embodiment, a locking block is fixed on the guide plate, and a locking groove is provided on the inner wall of the furnace, with the locking block slidably disposed in the locking groove.

[0015] Compared with the prior art, the present invention provides a glass tempering furnace, which has the following beneficial effects:

[0016] 1. By setting the adjustment component, the height of the active roller can be adjusted when glass of different thicknesses enters the furnace, thus completing the position adjustment of the heating guide wire. Moreover, passive adjustment is achieved. This adjustment method does not rely on sensors and programs, has extremely high accuracy and reliability, responds instantly, and has low operating costs.

[0017] 2. By using a self-locking mechanism, when the upper end of the push rod moves downward, the lower end of the push rod will drive the slider to slide to the right along the limiting groove. Eventually, the upper ratchet will be locked in a groove of the lower ratchet. This ensures that the position of the heating guide wire remains unchanged during the tempering process of glass of the same thickness, preventing the heating guide wire from resetting after the glass has passed the active roller and fully entered the furnace, thereby improving heating stability.

[0018] 3. By utilizing the wind-regulating components, as the guide plates approach each other, the wind shield moves relative to the guide plates, thereby reducing the conduction area of ​​the rectangular and trapezoidal holes. Air entering from the duct can pass through the narrow, high-temperature area densely heated by the heated guide wires at a higher speed, thus forcing heat convection into the glass interior. Simultaneously, the trapezoidal hole design on the guide plates ensures that the thicker the glass, the more concentrated the wind pressure will be at the center of the glass, creating a significant temperature gradient between the edge and center areas. This rapidly increases the core temperature of the glass within a certain time, ensuring thorough heating of the entire glass sheet and preventing warping during subsequent quenching, solving the problem of slow core heating in thick glass. Furthermore, the misalignment of the rectangular and trapezoidal holes allows dust hidden between them to be eliminated, resulting in more stable wind pressure; achieving three benefits in one.

[0019] 4. By using the adjustment components, self-locking components and wind power adjustment components together, it is possible to achieve overall passive adjustment with high coordination among them, ensuring that each adjustment is carried out synchronously. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the furnace chamber of the present invention;

[0022] Figure 3 This is a schematic diagram of the adjustment component structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the self-locking component of the present invention;

[0025] Figure 6 This is a schematic diagram of the wind power regulation component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the guide plate and heating guide wire structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the windbreak structure of the present invention.

[0028] In the diagram: 11. Base; 12. Furnace chamber; 13. Air duct; 21. Roller; 31. Guide plate; 32. Heating guide wire; 311. Locking block; 41. Support; 42. Steering shaft; 43. Driving rod; 44. Driving roller; 45. Return spring; 46. Driven rod; 47. Push rod; 48. Limiting plate; 49. Slider; 481. Limiting groove; 51. First rack; 52. Fixed shaft; 53. Gear; 54. Second rack; 61. Sliding column; 62. Lower ratchet; 63. Compression spring; 64. Return rod; 312. Trapezoidal hole; 71. Wind shield; 72. Push rod; 73. Ejection spring; 711. Rectangular hole; 81. Motor; 82. Rotating shaft; 83. Sprocket; 84. Transmission belt. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0031] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Reference Figures 1-8 The present invention provides a technical solution:

[0035] A glass tempering furnace includes a furnace chamber 12 for heating glass. Multiple rollers 21 for conveying glass are linearly distributed in the horizontal direction inside the furnace chamber 12. Guide plates 31 with heating guide wires 32 are provided on the upper and lower sides of each roller 21. Both guide plates 31 are slidably disposed on the inner wall of the furnace chamber 12.

[0036] The adjustment assembly includes an active roller 44 and two sets of adjustment mechanisms. The active roller 44 is located at the inlet end of the furnace 12 and above the roller 21. The two sets of adjustment mechanisms are respectively connected to the two ends of the active roller 44 and respectively connected to the guide plate 31.

[0037] When glass of different thicknesses enters the furnace chamber 12, it lifts the active roller 44 to different heights. The two sets of adjustment mechanisms change the position of the guide plate 31 based on the height lifted by the active roller 44, so as to change the distance between the heating guide wire 32 and the glass, thereby changing the intensity of the radiant heat flow of the heating guide wire 32 to the glass.

[0038] It should be noted that you should refer to [link / reference]. Figure 1 The glass enters from the left side of the furnace chamber 12, is heated by the heating guide wire 32, and finally slides out from the right side of the furnace chamber 12. During this process, the roller 21 rotates under the drive of the drive source, which can actively transport the glass.

[0039] The plurality of rollers 21 are divided into a plurality of conveying sections. Exemplarily, the plurality of conveying sections include a first conveying section, a second conveying section, a third conveying section, a fourth conveying section, a fifth conveying section, a sixth conveying section, a seventh conveying section, and an eighth conveying section. In the first and second conveying sections, the spacing between adjacent rollers 21 is configured between 180mm and 210mm. In the third conveying section, the spacing between adjacent rollers 21 is configured between 130mm and 160mm. In the fourth conveying section, the spacing between adjacent rollers 21 is configured between 120mm and 140mm. In the fifth conveying section, the spacing between adjacent rollers 21 is configured between 90mm and 100mm. In the sixth conveying section, the spacing between adjacent rollers 21 is configured between 95mm and 90mm. In the seventh and eighth conveying sections, the spacing between adjacent rollers 21 is configured between 70mm and 80mm.

[0040] The total length of the multiple conveying sections is configured to be between 5.5m and 6.3m. Within each conveying section, multiple rollers 21 are made of quartz material, and the diameter of the multiple rollers 21 is configured to be between 45mm and 55mm.

[0041] In this application, the adjusting mechanism includes a support 41, a steering shaft 42, a driving rod 43, a driven rod 46, a top rod 47, a limiting plate 48, and a slider 49. The support 41 is fixed to the inner wall of the furnace 12 inlet end. The steering shaft 42 is rotatably connected inside the support 41. Both ends of the steering shaft 42 are fixedly connected to the driving rod 43 and the driven rod 46, respectively. The driving roller 44 is rotatably connected to the driving rod 43. The driven rod 46 is rotatably connected to one end of the top rod 47. The top rod 47 abuts against the guide plate 31 located on the upper layer. The limiting plate 48 is fixed to the inner wall of the furnace 12. A limiting groove 481 is formed in the limiting plate 48. The slider 49 is slidably disposed in the limiting groove 481, and the slider 49 is rotatably connected to the end of the top rod 47 away from the driven rod 46.

[0042] For example, please refer to Figure 3 When the glass enters from the left, it will first lift the active roller 44. The active rod 43 will drive the steering shaft 42 and the driven rod 46 to rotate clockwise by a certain angle. Therefore, the end of the push rod 47 near the driven rod 46 will move downward a certain distance. As a result, the guide plate 31 will move downward synchronously to achieve position adjustment. During this period, the end of the push rod 47 away from the driven rod 46 will drive the slider 49 to slide to the right in the limiting groove 481, so that the guide plate 31 moves downward smoothly.

[0043] Moreover, the greater the glass thickness, the greater the downward movement distance of the top rod 47, that is, the smaller the distance between the guide plate 31 and the glass surface, and the greater the intensity of radiant heat flow from the heating guide wire 32 to the glass.

[0044] Therefore, when glass of different thicknesses enters the furnace chamber 12, the height of the active roller 44 is different, which ultimately completes the position adjustment of the heating guide wire 32, thereby achieving passive adjustment. This adjustment method does not rely on sensors and programs, has extremely high accuracy and reliability, responds instantly, and has low operating costs.

[0045] In a preferred embodiment, a transmission assembly is further provided between the two guide plates 31. The transmission assembly includes a first rack 51, a fixed shaft 52, a gear 53, and a second rack 54. The fixed shaft 52 is fixed to the inner wall of the furnace chamber 12, and the gear 53 is rotatably sleeved on the outer periphery of the fixed shaft 52. The first rack 51 is connected to the guide plate 31 above the glass, and the second rack 54 is connected to the guide plate 31 below the glass. The gear 53 meshes with the first rack 51 and the second rack 54 respectively.

[0046] Specifically, the synchronous adjustment method for the two guide plates 31 is as follows: Please refer to [link / reference needed]. Figure 2 and Figure 4 When the upper guide plate 31 moves downward, the upper guide plate 31 drives the first rack 51 to move downward synchronously, which in turn drives the gear 53 to rotate. The gear 53 drives the second rack 54 to move upward, which in turn drives the lower guide plate 31 to move upward. Therefore, the two guide plates 31 will move closer or further apart synchronously.

[0047] In summary, for thin glass, the distance between the two guide plates 31 and the two heating wires 32 after they move relative to the surface of the thin glass is relatively large. This makes it easier to reduce the intensity of the radiative heat flow and to apply heat to the glass surface smoothly and evenly. Under the premise of ensuring that the thin glass does not deform, it is heated evenly to the tempering temperature.

[0048] Conversely, for thick glass, the distance between the two guide plates 31 and the two heating wires 32 after they move and the thick glass surface is small, which makes it easier to greatly increase the intensity of radiative heat transfer, strongly heat the glass surface, overcome the huge thermal inertia of thick glass, and make the glass edge and core reach the tempering temperature fully and uniformly within a certain period of time.

[0049] In summary, in this embodiment of the application, when processing glass of different thicknesses, the distance between the two heating guide wires 32 and the glass changes synchronously to passively adjust the heating temperature on both sides of the glass, so that when glass of different thicknesses enters the quenching zone after exiting the furnace, the overall temperature of the glass can reach a uniform tempering temperature.

[0050] In a preferred embodiment, a self-locking component is provided within the limiting plate 48. The self-locking component includes a sliding post 61, a lower ratchet 62, a compression spring 63, and an upper ratchet. The sliding post 61 slides through the limiting plate 48. The lower ratchet 62 is fixed to the upper end of the sliding post 61 and is slidably disposed within the limiting plate 48. The compression spring 63 is connected between the inner wall of the limiting plate 48 and the lower ratchet 62. The upper ratchet is fixed to the lower end of the slider 49 and engages with the lower ratchet 62.

[0051] For example, please refer to Figure 3 and Figure 5 When the upper end of the push rod 47 moves downward, the lower end of the push rod 47 will drive the slider 49 to slide to the right along the limiting groove 481. During this period, the upper ratchet at the lower end of the slider 49 will squeeze against the lower ratchet 62, forcing the lower ratchet 62 to move downward intermittently. Eventually, the upper ratchet will be stuck in a certain groove of the lower ratchet 62. Thus, when no glass passes under the drive roller 44, even if the force of the return spring 45 has a leftward force on the upper ratchet, the lower ratchet 62 will prevent the upper ratchet from sliding to the left, that is, prevent the slider 49 from resetting. Therefore, it is ensured that the position of the heating guide wire 32 remains unchanged during the tempering process of glass of the same thickness, and the heating guide wire 32 is prevented from resetting after the glass passes over the drive roller 44 and completely enters the furnace chamber 12, thereby improving the heating stability.

[0052] In a preferred embodiment, each set of adjustment mechanisms further includes a return spring 45, one end of which is connected to the inner wall of the furnace 12, and the other end of which is connected to the drive rod 43. A return rod 64 is fixed on the lower ratchet 62, and an avoidance hole is provided on the side wall of the furnace 12. The return rod 64 is slidably disposed in the avoidance hole.

[0053] When the glass of the same thickness has been tempered, press the reset lever 64. The reset lever 64 drives the lower ratchet 62 to move down synchronously. The upper ratchet and the groove of the lower ratchet 62 disengage, thereby releasing the limiting effect of the lower ratchet 62 on the upper ratchet. Under the elastic force of the reset spring 45, the entire adjustment assembly will return to the initial position so that subsequent tempering of glass of different thicknesses can be carried out.

[0054] In a preferred embodiment, the top and bottom of the furnace 12 are connected to the output end of an external fan through air ducts 13. Two guide plates 31 are symmetrically arranged in the furnace 12 on opposite sides. The air force adjustment assembly includes a wind shield 71, a push rod 72 and an ejection spring 73. The wind shield 71 slides in contact with the guide plate 31. The two ends of the push rod 72 are respectively hinged between the inner wall of the furnace 12 and the wind shield 71. The ejection spring 73 is connected between the push rod 72 and the inner wall of the furnace 12.

[0055] The guide plate 31 has multiple trapezoidal holes 312 linearly opened in the horizontal direction; the wind shield 71 has multiple rectangular holes 711 linearly opened in the horizontal direction, and the multiple rectangular holes 711 are connected to the multiple trapezoidal holes 312 one by one.

[0056] It should be explained here that the two guide plates 31 are respectively located on the two heating guide wires 32 on opposite sides, and the heating guide wires 32 are suspended on the guide plates 31, so as to ensure that the heating guide wires 32 directly heat the glass while shielding the rectangular hole 711.

[0057] For example, please refer to Figures 6 to 8 First, under the elastic force of the ejector spring 73, the push rod 72 can make the wind shield 71 fit tightly with the guide plate 31, and at the same time ensure that the guide plate 31 located on the upper layer always adapts to the movement of the push rod 47, that is, the push rod 47 and the wind shield 71 achieve dynamic clamping of the guide plate 31.

[0058] Secondly, please refer to the details. Figure 6 When the guide plate 31 moves the heating guide wire 32 downward, the push spring 73 releases its elastic potential energy, and the push rod 72 rotates clockwise by a certain angle, thereby moving the wind shield 71 to the left by a certain distance. This reduces the conduction area between the rectangular hole 711 and the trapezoidal hole 312, i.e., reduces the air outlet area. According to the principle of fluid continuity (Q=A×V, where Q is the airflow rate), the reduction in cross-sectional area A leads to an increase in air velocity V. This allows the air entering from the duct 13 to pass through the narrow high-temperature area densely heated by the heating guide wire 32 at a higher speed, forming hot air pressure. This forces the heat to convect into the glass. This forced convection using hot air pressure can assist the radiative heat flow of the heating guide wire 32, achieving the purpose of dual heat exchange. Moreover, the thicker the glass, the more significant this forced heat exchange effect is. Therefore, for glass of different thicknesses, uniform and efficient heating quality can be obtained within the same heating time.

[0059] In addition, the greater the thickness of the processed glass, the greater the downward distance of the guide plate 31, and the greater the sliding distance of the wind shield 71 relative to the guide plate 31. As a result, the effective conduction area of ​​the trapezoidal hole 312 is reduced. Since the conduction width of the trapezoidal hole 312 is smaller, the hot air pressure is concentrated on the central area of ​​the glass. That is, the thicker the glass, the more concentrated the hot air pressure is on the central area of ​​the glass. This creates a significant temperature gradient between the edge area and the central area of ​​the glass, which can quickly raise the core temperature of the glass within a certain period of time, ensuring that the entire glass is thoroughly heated and preventing warping and deformation of the glass during subsequent quenching. This perfectly solves the problem of slow core heating of thick glass.

[0060] Moreover, when the wind shield 71 slides relative to the guide plate 31, the rectangular hole 711 and the trapezoidal hole 312 move out of alignment, so that the dust hidden between them can be scraped off, making the hot air pressure more stable.

[0061] In a preferred embodiment, a drive mechanism is provided on the plurality of rollers 21. The drive mechanism includes a motor 81, a rotating shaft 82, a sprocket 83, and a transmission belt 84. The motor 81 is fixedly installed, and a base 11 is fixedly installed at the bottom of the furnace chamber 12. The rotating shaft 82 rotates within a sleeve fixed on the base 11. The sprocket 83 is connected between the driving tooth on the output shaft of the motor 81 and the driven tooth on the rotating shaft 82. A plurality of transmission belts 84 are provided, and the plurality of transmission belts 84 are respectively connected between the rotating shaft 82 and the plurality of rollers 21.

[0062] When the motor 81 starts, it drives the rotating shaft 82 to rotate through the sprocket 83. The rotating shaft 82 drives multiple rollers 21 to rotate synchronously through multiple transmission belts 84, so that the multiple rollers 21 can carry the glass and move smoothly in the furnace chamber 12.

[0063] In a preferred embodiment, a locking block 311 is fixed on the guide plate 31, and a locking groove is provided on the inner wall of the furnace chamber 12, with the locking block 311 slidably disposed in the locking groove.

[0064] When the guide plate 31 moves, the locking block 311 can prevent the guide plate 31 from tilting so that the heating guide wire 32 can only move in the vertical direction.

[0065] Specifically, when tempering glass is required, the motor 81 and external fan are started first. After the tempered glass lifts the active roller 44 and enters the furnace chamber 12, it is driven by the adjustment component and the transmission component. The two guide plates 31, carrying their respective heating wires 32, move synchronously to a certain distance and then lock their positions under the action of the self-locking component. During this process, the wind shield 71 slides a certain distance relative to the guide plate 31 to change the wind pressure and the area of ​​action. When the glass of the same thickness is tempered, the reset rod 64 is pressed to realize the automatic reset of the entire device.

[0066] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A glass tempering furnace, characterized in that: include: The furnace (12) for heating glass has multiple rollers (21) for conveying glass linearly distributed in the horizontal direction inside the furnace (12). The upper and lower sides of the rollers (21) are provided with guide plates (31) on which heating guide wires (32) are arranged. Both guide plates (31) are slidably arranged on the inner wall of the furnace (12). The adjustment assembly includes an active roller (44) and two sets of adjustment mechanisms. The active roller (44) is located at the inlet end of the furnace (12) and above the roller (21). The two sets of adjustment mechanisms are respectively connected to the two ends of the active roller (44) and respectively connected to the guide plate (31). The adjusting mechanism includes a support (41), a steering shaft (42), a driving rod (43), a driven rod (46), a top rod (47), a limiting plate (48), and a slider (49); the support (41) is fixed on the inner wall of the furnace (12) inlet end, and the steering shaft (42) is rotatably connected inside the support (41). The two ends of the steering shaft (42) are fixedly connected to the driving rod (43) and the driven rod (46) respectively. The driving roller (44) is connected to the driving rod (49). 43) Rotary connection, the driven rod (46) is rotatably connected to one end of the top rod (47), the top rod (47) abuts against the guide plate (31) located on the upper layer, the limiting plate (48) is fixed to the inner wall of the furnace (12), the limiting plate (48) has a limiting groove (481) in the limiting plate (48), the slider (49) is slidably disposed in the limiting groove (481), and the slider (49) is rotatably connected to the end of the top rod (47) away from the driven rod (46); When glass of different thicknesses enters the furnace (12), it lifts the active roller (44) to different heights. The two sets of adjustment mechanisms change the position of the guide plate (31) based on the height lifted by the active roller (44) to change the distance between the heating guide wire (32) and the glass.

2. The glass tempering furnace according to claim 1, characterized in that: A transmission assembly is also provided between the two guide plates (31). The transmission assembly includes a first rack (51), a fixed shaft (52), a gear (53), and a second rack (54). The fixed shaft (52) is fixed to the inner wall of the furnace (12). The gear (53) is rotatably sleeved on the outer periphery of the fixed shaft (52). The first rack (51) is connected to the guide plate (31) above the glass. The second rack (54) is connected to the guide plate (31) below the glass. The gear (53) meshes with the first rack (51) and the second rack (54) respectively.

3. The glass tempering furnace according to claim 2, characterized in that: The limiting plate (48) is provided with a self-locking component, which includes a sliding column (61), a lower ratchet (62), a compression spring (63), and an upper ratchet. The sliding column (61) slides through the limiting plate (48). The lower ratchet (62) is fixed at the upper end of the sliding column (61) and is slidably disposed in the limiting plate (48). The compression spring (63) is connected between the inner wall of the limiting plate (48) and the lower ratchet (62). The upper ratchet is fixed at the lower end of the slider (49) and engages with the lower ratchet (62).

4. The glass tempering furnace according to claim 3, characterized in that: Each set of adjustment mechanisms also includes a reset spring (45), one end of which is connected to the inner wall of the furnace (12), and the other end of which is connected to the drive rod (43). A reset rod (64) is fixed on the lower ratchet (62). An avoidance hole is provided on the side wall of the furnace (12), and the reset rod (64) is slidably disposed in the avoidance hole.

5. The glass tempering furnace according to claim 1, characterized in that: The top and bottom of the furnace (12) are connected to the output end of an external fan through a duct (13). Two guide plates (31) are symmetrically arranged in the furnace (12) on opposite sides. The wind force adjustment assembly includes a wind shield (71), a push rod (72) and a push spring (73). The wind shield (71) slides in contact with the guide plate (31). The two ends of the push rod (72) are respectively hinged between the inner wall of the furnace (12) and the wind shield (71). The push spring (73) is connected between the push rod (72) and the inner wall of the furnace (12). The guide plate (31) has multiple trapezoidal holes (312) linearly opened in the horizontal direction; the wind shield (71) has multiple rectangular holes (711) linearly opened in the horizontal direction, and the multiple rectangular holes (711) are connected to the multiple trapezoidal holes (312) one by one.

6. The glass tempering furnace according to claim 1, characterized in that: A drive mechanism is provided on a plurality of rollers (21). The drive mechanism includes a motor (81), a rotating shaft (82), a sprocket (83), and a transmission belt (84). The motor (81) is fixedly installed. A base (11) is fixed at the bottom of the furnace (12). The rotating shaft (82) rotates in a sleeve fixed on the base (11). The sprocket (83) is connected between the driving tooth on the output shaft of the motor (81) and the driven tooth on the rotating shaft (82). A plurality of transmission belts (84) are provided. The plurality of transmission belts (84) are respectively connected between the rotating shaft (82) and the plurality of rollers (21).

7. The glass tempering furnace according to claim 1, characterized in that: A locking block (311) is fixed on the guide plate (31), and a slot is provided on the inner wall of the furnace (12). The locking block (311) is slidably disposed in the slot.

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